421108504 has 8 divisors (see below), whose sum is σ = 789578460. Its totient is φ = 210554248.

The previous prime is 421108487. The next prime is 421108511. The reversal of 421108504 is 405801124.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×421108504² = 354664744282236032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26319274 + ... + 26319289.

Almost surely, 2^421108504 is an apocalyptic number.

It is an amenable number.

421108504 is a deficient number, since it is larger than the sum of its proper divisors (368469956).

421108504 is a wasteful number, since it uses less digits than its factorization.

421108504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52638569 (or 52638565 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 421108504 is about 20520.9284390351. The cubic root of 421108504 is about 749.5455047826.

Adding to 421108504 its reverse (405801124), we get a palindrome (826909628).

The spelling of 421108504 in words is "four hundred twenty-one million, one hundred eight thousand, five hundred four".